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Generalized Almost Complete Revivals in quantum spin chains

Quantum Physics 2022-05-12 v1

Abstract

The conception of almost complete revivals has been introduced recently. In a quantum many-body system local observable may exhibit an almost complete revival to its maximal value at the predetermined moment of time. In this paper we extend the original procedure such that the revival may be from an arbitrary point on the Bloch sphere to the arbitrary point. Furthermore in the proposed procedure the reviving and collapsing sites are not necessarily the same. We also demonstrate that for spins SS higher than 1/21/2 almost complete revivals are suppressed as 1/S1/S.

Cite

@article{arxiv.2205.05584,
  title  = {Generalized Almost Complete Revivals in quantum spin chains},
  author = {Igor Ermakov},
  journal= {arXiv preprint arXiv:2205.05584},
  year   = {2022}
}

Comments

8 pages, 4 figures

R2 v1 2026-06-24T11:14:27.805Z